Wall anchor



FIG. 1 is a perspective view of a wall anchor showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG, 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a left side view thereof; and,

FIG. 7 is a right side view thereof.

The broken lines in the drawings illustrate portions of the wall anchorand forms no part of the claimed design.

CLAIM The ornamental design for a wall anchor, as shown and described.